Definition:
A "voluntary muscle" is a type of muscle in your body that you can control consciously. This means you can decide when to use these muscles, like when you move your arms or legs.
In a medical or biological context, you might hear about voluntary muscles in discussions about physical activities or exercises. For example: - "Weightlifting strengthens voluntary muscles, helping improve overall fitness."
The term "muscle" can also refer to strength or power in a different context. For example, "He showed his muscle in the competition," meaning he demonstrated strength or capability.
While there are no specific idioms or phrasal verbs that directly include "voluntary muscle," you might come across related phrases in fitness or health discussions, such as: - "Flex your muscles" - This means to show strength or power, often used metaphorically.
In summary, "voluntary muscle" refers to muscles that you can control, allowing you to move your body intentionally.